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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (https://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@noladev.com> |
| 7 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
| 8 | * @license https://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Cache\Adapter; |
| 15 | |
| 16 | /** |
| 17 | * APC cache adapter class |
| 18 | * |
| 19 | * @category Pop |
| 20 | * @package Pop\Cache |
| 21 | * @author Nick Sagona, III <dev@noladev.com> |
| 22 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
| 23 | * @license https://www.popphp.org/license New BSD License |
| 24 | * @version 4.0.2 |
| 25 | */ |
| 26 | class Apc extends AbstractAdapter |
| 27 | { |
| 28 | |
| 29 | /** |
| 30 | * Constructor |
| 31 | * |
| 32 | * Instantiate the APC cache object |
| 33 | * |
| 34 | * @param int $ttl |
| 35 | * @throws Exception |
| 36 | */ |
| 37 | public function __construct(int $ttl = 0) |
| 38 | { |
| 39 | parent::__construct($ttl); |
| 40 | if (!function_exists('apcu_cache_info')) { |
| 41 | throw new Exception('Error: APCu is not available.'); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Method to get the current APC info. |
| 47 | * |
| 48 | * @return array |
| 49 | */ |
| 50 | public function getInfo(): array |
| 51 | { |
| 52 | return apcu_cache_info(); |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Get the time-to-live for an item in cache |
| 57 | * |
| 58 | * @param string $id |
| 59 | * @return int |
| 60 | */ |
| 61 | public function getItemTtl(string $id): int |
| 62 | { |
| 63 | $cacheValue = apcu_fetch($id); |
| 64 | $ttl = 0; |
| 65 | |
| 66 | if ($cacheValue !== false) { |
| 67 | $ttl = $cacheValue['ttl']; |
| 68 | } |
| 69 | |
| 70 | return $ttl; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Save an item to cache |
| 75 | * |
| 76 | * @param string $id |
| 77 | * @param mixed $value |
| 78 | * @param ?int $ttl |
| 79 | * @return Apc |
| 80 | */ |
| 81 | public function saveItem(string $id, mixed $value, ?int $ttl = null): Apc |
| 82 | { |
| 83 | $cacheValue = [ |
| 84 | 'start' => time(), |
| 85 | 'ttl' => ($ttl !== null) ? $ttl : $this->ttl, |
| 86 | 'value' => $value |
| 87 | ]; |
| 88 | |
| 89 | apcu_store($id, $cacheValue, $cacheValue['ttl']); |
| 90 | |
| 91 | return $this; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Get an item from cache |
| 96 | * |
| 97 | * @param string $id |
| 98 | * @return mixed |
| 99 | */ |
| 100 | public function getItem(string $id): mixed |
| 101 | { |
| 102 | $cacheValue = apcu_fetch($id); |
| 103 | $value = false; |
| 104 | |
| 105 | if (($cacheValue !== false) && |
| 106 | (($cacheValue['ttl'] == 0) || ((time() - $cacheValue['start']) <= $cacheValue['ttl']))) { |
| 107 | $value = $cacheValue['value']; |
| 108 | } else { |
| 109 | $this->deleteItem($id); |
| 110 | } |
| 111 | |
| 112 | return $value; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Determine if the item exist in cache |
| 117 | * |
| 118 | * @param string $id |
| 119 | * @return bool |
| 120 | */ |
| 121 | public function hasItem(string $id): bool |
| 122 | { |
| 123 | return ($this->getItem($id) !== false); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Delete a value in cache |
| 128 | * |
| 129 | * @param string $id |
| 130 | * @return Apc |
| 131 | */ |
| 132 | public function deleteItem(string $id): Apc |
| 133 | { |
| 134 | apcu_delete($id); |
| 135 | return $this; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Clear all stored values from cache |
| 140 | * |
| 141 | * @return Apc |
| 142 | */ |
| 143 | public function clear(): Apc |
| 144 | { |
| 145 | apcu_clear_cache(); |
| 146 | return $this; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Destroy cache resource |
| 151 | * |
| 152 | * @return Apc |
| 153 | */ |
| 154 | public function destroy(): Apc |
| 155 | { |
| 156 | $this->clear(); |
| 157 | return $this; |
| 158 | } |
| 159 | |
| 160 | } |